Question
Download Solution PDFWhich of the following statements about sound waves is correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Sound: A local disturbance whose propagation is facilitated by the collisions between particles this disturbance propagates in a longitudinal wave, imagine one molecule hitting the next molecule, and then that molecule hitting the next, and so forth.
- It is a mechanical wave that needs a medium to travel.
- The speed of sound is proportional to the density of the material.
- Since the density of a solid is maximum so the speed of sound is maximum in solid.
Speed of sound in solid (6000 m/s) > Speed of sound in liquid (1402 to 1482 m/s) > Speed of sound in gas/air (330 to 345 m/s).
EXPLANATION:
- Since the sound is a mechanical wave that needs a medium to travel. So statement 1 is not true.
- Sound travels fastest in solids than in air. So option 3 is correct.
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